2404104441021 has 20 divisors (see below), whose sum is σ = 3591498949500. Its totient is φ = 1602654875136.

The previous prime is 2404104441019. The next prime is 2404104441047. The reversal of 2404104441021 is 1201444014042.

It is a happy number.

2404104441021 is a `hidden beast` number, since 240 + 4 + 1 + 0 + 4 + 4 + 410 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 108534008025 + 2295570432996 = 329445^2 + 1515114^2 .

It is not a de Polignac number, because 2404104441021 - 2¹ = 2404104441019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2404104441061) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 871965 + ... + 2359773.

It is an arithmetic number, because the mean of its divisors is an integer number (179574947475).

Almost surely, 2^{2404104441021} is an apocalyptic number.

It is an amenable number.

2404104441021 is a deficient number, since it is larger than the sum of its proper divisors (1187394508479).

2404104441021 is a wasteful number, since it uses less digits than its factorization.

2404104441021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507770 (or 1507761 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 2404104441021 its reverse (1201444014042), we get a palindrome (3605548455063).

The spelling of 2404104441021 in words is "two trillion, four hundred four billion, one hundred four million, four hundred forty-one thousand, twenty-one".